1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5741fd96efdf2c731ffe46768fe65371698a59baa88ed7befa72d4dee9a70687. Chain 2 (Bitcoin): anchored in block 953733 (2026-06-15T03:12:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9763ce72-315c-40ec-b784-50d5d764c87f.json and https://artists.proofprofile.net/proofs/artist/9763ce72-315c-40ec-b784-50d5d764c87f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Corona Sessions (Live in an Empty Room)